Matrix-rolling machine



Jan. 14, 1930. J. RADA MATRIX ROLLING- MACHINE Filed April 9. 1927Patented Jan. 14, 1930 UNITED STATES PATENT OFFICE JOSEPH RADA, OFCHICAGO, ILLINOIS, ASSIGNOR TO THE GOSS PRINTING PRESS CO., OF

CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS MATRIX-ROLLING MACHINEApplication mea April 9,

My invention relates to matrix rolling machines of the type in which aflong is carried in Contact with the face of a form underneath a heavypressure roller by which the form is forced into the face of the flongfor cutting an impression therein to adapt it for use as a matrix in acasting box for the production of a stereotype plate corresponding tothe form. In machines of this type heretofore, an auxiliary rollercomparatively much smaller than the pressure roller has been providedadjacent to the pressure roller and in rear thereof with respect to thedirection of movement of the form and mat under the pressure roller,such auxiliary roller being adapted by engagement with the blanket andby downw ward pressure on the blanket and mat t0 smooth out and stretchthe portion of the mat and the blanket between the pressure roller andthe auxiliary roller whereby thepressure roller has been enabled toeffect the desired cutting of themat by the form without the formationof creases or wrinkles in the matrix and without distorting the matrix.

It is one of the objects of mylinvention to improve devices of this typeby providing improved means adapted automatically in the normaloperation of the machine to raise the i auxiliary roller before thestart of the operative stroke of t-he bed so as to permit the form withthe fiong and blanket in position thereon to be slid freely intoposition underneath the auxiliary roller without danger of disarrangingthe blanket and without the necessity for forcing the form intoposition.-

It is one of the objects of my invention to provide an improvedconstruction. of this type in which the roller is moved to its raisedposition by the action of friction and is again lowered into operativeposition upon the blanket soas to press downwardly on the matrix also byfriction at the beginning of the operative stroke of the form underneath1927. Serial N0. 182,293.

of the machine. In machines of this type, it has been usual to providetwo auxiliary rollers, one on each side of the pressure roller Aso thatone of the rollers shall be effective for the operation in one directionand the other,

roller shall be effective for the operation in the other direction. Itis one of the objects of my invention to provide an improvedconstruction of this type comprising operative connections between therollers so arranged that the forward movement of the roller which iseffective for one stroke Causes the other roller to be moved to itsraised position ready for the reception of the form and blanket for thenext stroke. It is one of the objects of my invention to provide a camconstruction for controlling the ositions of the auxiliary roller orrollers, suc i cam Vdevice being preferably actuated by friction forattaining the desired results.

It is another ob]- ect of my invention to provide a construction whichcan be utilized to advantage in connection with the old form of matrixrolling machines without any change therein other than the removal ofthe auxil iary roller or rollers from such old machine together with themounting means therefor, whereby the application of my improvements toold machines may be easily and quickly effected. It is another object ofmy invention to improve devices of this type in sundry detailshereinafter pointedy out. The preferred means by which I haveaccomplished my several objects are illustrated in the drawing and arehereinafter specifically described. That which I believe to be `new anddesire to cover by Letters Patent is set forth in the claims.

In the drawing,-

Fig. l' is a side view of my improved inachine, shown more or lessdiagrammatically, and broken away at its bottom portion.

Fig. 2 is anend view of the machine of Fig. l as seen from the right insaid ligure.

Fig. 3 is a detailed view, showing the auxiliary rollers of the machineof F ig. 1,*t0- gether with the bars connectingsuch rollers, the partsbeing partly broken away for clearness of illustration.

Fig. 4t is a side view of one of the slide blocks employed in myimproved device.

Fig. 5 is an enlarged detailed view, partly broken away, showing thepositions of the parts as illustrated in Fig. 1, being partly in sectionand taken substantially at line 5--5 of Fig. 2.

Fig. 6 is a view similar to Fig. 5 but showin a changed position of theparts; and

ig. 7 is a view similar to Figs. 5 and 6 but showing still anotherchanged position of the parts.

Referring now to the several figures in which corresponding parts areindicated by the same reference characters,-2O indicates a frame-work ofany approved type upon which a bed or platen 2l is movable back andforth by power from any suitable source applied in any suitable manner.At the middle of the machine longitudinally thereof, I have provided acylinder 22 which underlies the bed 21 as the bed is moved back andforth longitudinally of the machine, the cylinder 22 being journaled inposition and being adapted to take the greater portion of the downwardpressure upon the bed 21 as hereinafter described.

At opposite sides of the frame 20 I have provided standards 23 rigidlymounted in position and connected at their upper ends by a scross plate24. Between the standards 23, there is mounted a heavy pressure roller25, mounted revolubly in position by means of a shaft 26. As is shown inFig. 1, the shaft 26 is preferably mounted in eccentrics 27 by the useof which the vertical position of the cylinder or roller can beregulated, the eccentrics 27 being adapted to be rotated by any suitablemechanism for adjusting the vertical position of the roller 25. As isclearly shown in Fig. 1, the pressure roller 25 is mounted directlyabove the supporting roller or cylinder 22. 'Ihe pressure roller 25 isdriven at the same surface speed as that of the bed 21 and in acorresponding direction. That is to say, when the bed 21 moves towardthe left in Fig. 1 the pressure roller 25 is rotated in clockwisedirection in said figure.

With the machine standing in the condition as shown in Fig. 1, a chase28 containing therein a form of type is placed in position upon the bed21 with one edge thereof extending underneath the pressure roller 25. Ontop of the form, a tlong and blanket are placed in position, such partsbeing indicated in the drawings by the numeral 29. The blanket is to beof appropriate thickness in accordance with requirements as is wellunderstood in the art. The arrangement is such that when the bed 21 ismoved toward the left in Fig. 1, the form with the flong and blanket inposition thereon is carried underneath the pressure roller 25, theroller 25 being set in such position vertically as to force the longinto the form for cutting an impression in the flong, all asis wellunderstood practice. The machine is preferably to be provided with meansfor automatically stopping the operation at the end of the firstoperative stroke, the driving means being arranged so that upon a propersetting of the parts the bed will be given a second operative stroketoward the right and stopped again in the position as shown in Fig. 1,whereupon the bed can be given an additional stroke or strokes as may bedesired. Inasmuch as the operation of the machine so .far as thefeaturesabove referred to are concerned is old, it is believed to beunnecessary to describe the parts or the operation in further detailherein.

I will now describe the means for smoothing the blanket and for pressingthe blanket and the matrix down upon the form at the side of thepressure roller which is in the rear with respect to the movement of theplaten or bed 21. This means comprises auxiliary rollers 30 and 31revolubly mounted in position in end bars 32 by means of shafts 33. Asis clearly shown in Fig. 5, the rollers 30, 31 are mounted in positionupon opposite sides of the pressure roller 25, with the bars 32 oppositethe ends of the pressure roller 25 and spaced a short distancetherefrom. Between the bars 32 and the ends of the roller 25, I haveprovided slide blocks 34 which are inserted underneath the rollers 30,31 for holding them in adjusted position vertically. As is clearly shownin Figs. 5, 6 and 7, each Vof the slide blocks 34 comprises a centralpart 35 which is adapted to engage the end face of the roller 25 at oneface of the block and to engage the bar 32 at the opposite face, thearrangement being such that the blocks 34 and the rollers 30, 31 withtheir connecting bars 32 are adapted to shift freely longitudinally ofthe machine with respect to the roller 25. rlhe upper face of each ofthe slide blocks 35 is provided with reversely positioned diagonallydisposed cams 36 which eX- tend downwardly toward the ends of the block,the arrangement of the parts being such that when one of the rollers isin its lowermost position the other roller is in a comparatively higherposition.

lVith the parts assembled as above described, and with the slide blocks34 moved to the limit of their motion toward the right in Fig. 5, theroller 30 will be held in its lowermost position, while the roller 31 isheld in an elevated position well above the top face of the blanketcarried by the form. lith the parts in this position as shown in Fig. 5,power is to be applied to the machine for moving the bed 21 toward theleft for pressing the flong into the form. Upon the initial movement ofthe bed 21 toward. the left, t-he slide blocks 34 are moved also towardthe left. lVhen the roller 31 in its movement toward the left is broughtinto Contact with the pressure roller 25, the roll ers areprevented fromadvancing further and the slide blocks 34 continue their movement towardthe left, serving to cause the roller 30 to ride up the cam 36 at oneside of the pressure roller 25 and the auxiliary roller 31 to ride downthe cam 36 at the other side of the pressure roller, such movement ofthe rollers continuing until the roller 31 1s brought into engagementwith the blanket 29, such engagement being effected prior to theenga-gement of the form with the pressure roller 25. Each of the slideblocks 34 is preferably provided upon its bottom face with a frictionfacing 37 of any suitable type for causing it normally to move with thebed 21. The arrangement is such that, under normal conditions when theroller 31 is brought into engagement with the blanket on the form in theposition as shown in Fig. 6 and is thus stopped from moving furtherdownwardly, the slide blocks 34 are also prevented from moving farthertoward the left by the engagement of the roller 30 with the cams 36. lAs the movement of the bed 21 toward theleft in Fig. 6 continues, theparts are normally maintained in the position as shown in that figureuntil the rear edge of the form passes out of engagement with the roller31, whereupon the roller is permitted to move an additional distancedownwardly and the slide blocks 34 are permitted to move an additionaldistance toward the left with the bed 21, the parts then assuming theposition as shown in Fig. 7, with the roller 31 in its lowermostposition and with the roller 30 raised to its topmost position wellabove the surface of the blanket carried by the form. VVit-h the partsin the position at the end of a stroke as shown in Fig. 7 the form withthe blanket thereon may be removed from the machine and another form`with a flong and blanket in position thereon may be substituted, theform being readily insertable underneath the auxiliary roller 30 byreason of its elevated position. Upon the subsequent operative stroke ofthe bed 21 toward-the right from the position as shown in Fig. 7, theoperation is just the reverse of that above described, so that it neednot be referred to further. As will be readily understood, if at the endof the first operative stroke it is desired that the Hong be given asecond pressing operation underneath the roller 25, this can be broughtabout by a proper manipulation of the driving means without anyrearrangement of the form or the parts carried thereby.

At the end of such operative stroke, the parts will have attained thepositions as shownin Fig. 5. Inasmuch as the parts are thus broughtalternately into the positions as shown in Figs. 5 and 7, in either ofwhich positions the old form can readily be removed and a new formsubstituted, it will be appreciated 4that the form can be given as manyoperative pressure strokes as may be desired without in any wayaffecting the ease of substitution of the form and flong next to beoperated upon.

By reason of the fact that the rollers are operated by the slide blocksas actuated by their frictional engagement with the traveling bed, itwill be understood that the application of my improved mechanism to anold machine may be effected very readily, since it is not necessary tochange the parts in any way.

By the use of my improved construction, the rollers 30 and 31 areadapted to operate upon alternate strokes of the bed for smoothing downthe blanket and the matrix adjacent to the pressure roller whereby thematrix is held in the desired operative position with respect to theform and is prevented from becoming wrinkled or creased or in any otherway distorted, whereby a sharp impression is made suitable for a veryaccurate reproduction of the form in the stereotype plate prepared bythe use of the matrix. By the provision of my improvements, theinsertion of the form with the flong and blanket in position thereon isrendered very easy and a very considerable saving of time is effected ascompared with the operation of devices of the prior art in connectionwith which it has been necessary for the operator to lift the auxiliaryroller by hand.

Vhile I prefer to employ the construction as illustrated in the drawingand as above described, I wish to have it understood that the inventionis not limited to the form shown, except so far as certain of the claimsare specifically so limited, since it will be evident that changes mightwell be made without departing from the spirit of my invention.

I claim 1. A matrix rolling machine, comprising in combination a frame,a pressure roller revolubly mounted on said frame, a bed movable backand forth underneath said pressure roller in spaced relation thereto forpressing a flong into the face of a form carried by said bed, anauxiliary roller revolubly mounted in position adjacent to said pressureroller and movable up and down, and means actuated by the movement ofthe bed on said frame for moving said auxiliary roller upwardly oiit ofoperative position upon the stroke of the bed in one direction andadapted by a change in position at the start of the stroke in theopposite direction to permit said auxiliary roller to move downwardlyagain into operative position.

2. A matrix rolling machine, comprising in combination a frame, apressure roller revolubly mounted on said frame, a bed movable back andforth underneath said pressure roller in spaced relation thereto forpressing a flong into the face of a form carried by said bed, anauxiliary roller revolubly mounted in position adjacent to said pressureroller and movable up and down, and means actuated by frictionalengagement with said bed upon movement of the bed in one direction formovingr said auxiliary roller upwardly out of operative position andadapted by a change in position at the start of the stroke in theopposite direction to permit said auxiliary roller to move downwardlyagain into operative position.

3. A matrix rolling machine, comprising` in combination a frame, apressure roller revolubly mounted on said frame, a bed movable back andforth underneath said pressure roller in spaced relation thereto forpressing a Hong into the face of Ya form carried by said bed, auxiliaryrollers revolubly mounted in position adjacent to said pressure rolleron opposite sides thereof and movable up and down, and means actuated bya movement of the bed on said frame for moving one of said rollersupwardly out of operative position when the other roller is moved to itslowered position with respect to the form.

4. A matrix rolling machine, comprising in combination a frame, apressure roller revolubly mounted on said frame, a bed movable back andforth underneath said pressure roller in spaced relation thereto forpressing a flong into the face of a form carried by said bed, auxiliaryrollers revolubly mounted in position adjacent to said pressure rolleron opposite sides thereof and movable up and down, and means actuated byfrictional engagement with said bed upon movement of the bed in onedirection for movingone of said rollers upwardly out of operativeposition when the other roller is moved to its lowered position withrespect to the form.

5. A matrix rolling` machine, comprising in combination a frame, apressure roller revolubly mounted on said frame, a bed movable bacl; andforth underneath said pressure roller in spaced relation thereto forpressing a flongl into the face of a form carried by said bed, anauxiliary roller i'evolubly mounted in position adjacent to saidpressure roller and movable up and down, and cam means adapted bymovement longitudi- Vnally of the fiaiiie to move said auxiliary rollervertically into and out of operative position with respect to the form.

6. A matrix rolling machine, comprising in combination a frame, apressure roller revolubly mounted on said frame, a bed mov- 7. A matrixrolling machine, comprising in combination a frame, a pressure rollerrevolubly mounted on said frame, a bed movable back and forth underneathsaid pressure roller in spaced relation thereto for pressing,l a flous;into the face of a form carried by said bed, an auxiliary rollerrevolubly mounted in position adjacent to said pressure roller andmovable up and down, and a slide block frictionally mounted on said bedat each side thereof adapted by limited movements to move said auxiliaryroller vertically into and out of operative position with respect to theform.

8. A matrix rolling machine, comprising in combination a frame, apressure roller revolubly mounted on said frame, a bed movable back andforth underneath said pressure roller in spaced relation thereto forpressing a long into the face of a form carried by said bed, anauxiliary roller revolubly mounted in position adjacent to said pressureroller and movable up and down, and a slide block frictionally mountedon said bed at each side thereof and provided with cam means adapted bylimited movements longitudinally of the frame to move said auxiliaryroller vertically into and out of operative position with respect to theform.

9. A matrix rollingl machine, comprising in combination a frame, apressure roller revolubly mounted on said frame, a bed movable bacl: andforth underneath said pressure roller in spaced relation thereto forpressing a flong into the face of a form carried by said bed, a slideblock frictionally mounted on said bed at each side thereof and havingra cam face at each end, and an auxiliary roller revolubly mounted on thecam faces of said slide blocks adapted upon movement of the slide blocksin one direction with the bed to move upwardly on said cam faces out ofoperative position and adapted upon movement of the slide blocks in theopposite direction to in ove again downwardly into operative position.

l0. A .matrix rollingmachine, comprising 1n combination a frame, apressure roller revolubly mounted on said frame, a bed movable back andforth underneath said pressure roller in spaced relation thereto forpressingl a iiong into the face of a form car- 1ied by said bed, a slideblock frictionally mounted on said bed at each side thereof and havingcam faces at its opposite end portions, and auxiliary rollers revolublymounted on said cani faces at opposite sides of the pressure rolleradapted to be moved vertically into and out of operative position withrespect to the form as said slide blocks are given limited movementswith the bed.

ll. A matrix rolling.,r machine, comprising in combination a frame, apressure roller revolubly mounted on said frame, a bed movable back andforth underneath said pressure roller in spaced relation thereto forpressing a Hong int-o the face of a form carried by said bed, a slideblock frictionally mounted on said bed at each side thereof and havingcam faces at its opposite end portions, auxiliary rollers revolublymounted on said cam faces at opposite sides of the pressure roller, andmeans connecting said rollers for holding them in constant spacedrelation, said rollers being moved vertically into and out of operativeposition with respect to the form as said slide blocks are given limitedmovements with the bed.

12. A matrix rolling machine, comprising in combination a frame, apressure roller revolubly mounted on said frame, a bed movable back andforth underneath said pressure roller in spaced relation thereto forpressing a flong into the face of a form carried by said bed, a slideblock frictionally mounted on said bed at each side thereof and havingcam faces at its opposite end portions, auxiliary rollers revolublymounted on said faces at opposite sides of the pressure roller, andmeans connecting said rollers for holding them in constant spacedrelation, said cams being adapted to move one of said rollers upwardlyout of operative position with respect to the form as the other rollermoves downwardly into operative position.`

13. A matrix rolling machine, comprising in combination a frame, apressure roller revolubly mounted on said frame, a bed movable back andforth underneath said pressure roller in spaced relation thereto forpressing a flong into the face of a form carried by said bed, a slideblock frictionally mounted on said bed at each side thereof and havingreversely slanted diagonally disposed cam faces at its opposite endportions, and auxiliary rollers revolubly mounted on said cam faces atopposite sides of the pressure rollers adapted to be moved verticallyinto and out of operative position with respect to the form as saidslide blocks are given limited movements with the bed.

14. A matrix rolling machine comprising in combination a frame, apressure roller revolubly mounted on said frame, a bed movable back andforth underneath said pressure roller in spaced relation thereto forpressing` a flong into the face of a form carried by said bed, anauxiliary roller revolubly mounted in position adjacent to said pressureroller and movable up and down, and movable means actuated by contactwith the bed adapted upon movement of the bed in one direction to movesaid auxiliary roller upwardly out of operative position and adaptedupon movement of the bed in the other direction to permit said auxiliaryroller to move downwardly again into operative position.

15. A matrix rolling machine comprising in combination a frame, apressure roller revolubly mounted on said frame, a bed movable back andforth underneath said pressure roller in spaced relation thereto forpressing a flong into the face of a form carried by said bed, anauxiliary roller revolubly mounted in positin adjacent to said pressureroller and movable up and down, and means resting upon the bed andmovable therewith adapted upon a stroke of the bed in one direction tomove said auxiliary roller upwardly out of operative position andadapted upon a stroke of the bed in the opposite direction to permitsaid auxiliary roller to move downwardly again into operative position.

16. A matrix rolling machine, comprising in combination a frame, apressure roller revolubly mounted on said frame, a bed movable back andforth underneath said pressure roller in spaced relation thereto forpressing a flong into the face of a form carried by said bed, anauxiliary roller revolubly mounted in position adjacent to said pressureroller and movable up and down, and cam means moved by frictionalengagement with a driven part of the machineadapted upon a stroke of thebed in one direction to move said auxiliary roller upwardly out ofoperative position and adapted upon a stroke of the bed in the oppositedirection to permit said auxiliary roller to move downwardly again intooperative position.

JOSEPH RADA.

